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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Four Equal Spans » Aluminum I Beam » 10.00 × 8.646
Aluminum I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in four equal spans, we compute the displacement at the middle of the first and fourth spans, and the maximum normal stress occuring at the second and fourth supports of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 132.09 in4) for the 10.00 × 8.646 Aluminum I Beam and the typical Young's modulus (E = 1.015 × 107 psi) of Aluminum Alloys. Note that the typical yielding stress of Aluminum Alloys can range from 4061 to 7.614 × 104 psi. The purpose of this page is to give a rough estimation of the load-bearing capacity of this particular beam, rather than a guideline for designing actual building structures. Please check your local building codes for regulatory requirements.
Note: The weight of the beam itself is not included in the calculation.

 Aluminum I Beam: 10.00 × 8.646 (10.00 inch tall × 8.646 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 8.65 5.69 × 10-6 3.79 9.00 5.92 × 10-6 3.94 10.0 6.58 × 10-6 4.38 20.0 1.32 × 10-5 8.76 30.0 1.97 × 10-5 13.1 40.0 2.63 × 10-5 17.5 50.0 3.29 × 10-5 21.9 60.0 3.95 × 10-5 26.3 70.0 4.60 × 10-5 30.6 80.0 5.26 × 10-5 35.0 90.0 5.92 × 10-5 39.4 100 6.58 × 10-5 43.8 200 1.32 × 10-4 87.6 300 1.97 × 10-4 131 400 2.63 × 10-4 175 500 3.29 × 10-4 219 600 3.95 × 10-4 263 700 4.60 × 10-4 306 800 5.26 × 10-4 350 900 5.92 × 10-4 394 1000 6.58 × 10-4 438 2000 0.00132 876 3000 0.00197 1310 4000 0.00263 1750 5000 0.00329 2190 6000 0.00395 2630 7000 0.00460 3060 8000 0.00526 3500 9000 0.00592 3940 1.00 × 104 0.00658 4380 2.00 × 104 0.0132 8760 3.00 × 104 0.0197 1.31 × 104 4.00 × 104 0.0263 1.75 × 104 5.00 × 104 0.0329 2.19 × 104 6.00 × 104 0.0395 2.63 × 104 7.00 × 104 0.0460 3.06 × 104 8.00 × 104 0.0526 3.50 × 104 9.00 × 104 0.0592 3.94 × 104 1.00 × 105 0.0658 4.38 × 104 1.74 × 105 0.114 7.61 × 104
 Aluminum I Beam: 10.00 × 8.646 (10.00 inch tall × 8.646 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 8.65 4.39 × 10-5 10.5 9.00 4.57 × 10-5 10.9 10.0 5.07 × 10-5 12.2 20.0 1.01 × 10-4 24.3 30.0 1.52 × 10-4 36.5 40.0 2.03 × 10-4 48.6 50.0 2.54 × 10-4 60.8 60.0 3.04 × 10-4 73.0 70.0 3.55 × 10-4 85.1 80.0 4.06 × 10-4 97.3 90.0 4.57 × 10-4 109 100 5.07 × 10-4 122 200 0.00101 243 300 0.00152 365 400 0.00203 486 500 0.00254 608 600 0.00304 730 700 0.00355 851 800 0.00406 973 900 0.00457 1090 1000 0.00507 1220 2000 0.0101 2430 3000 0.0152 3650 4000 0.0203 4860 5000 0.0254 6080 6000 0.0304 7300 7000 0.0355 8510 8000 0.0406 9730 9000 0.0457 1.09 × 104 1.00 × 104 0.0507 1.22 × 104 2.00 × 104 0.101 2.43 × 104 3.00 × 104 0.152 3.65 × 104 4.00 × 104 0.203 4.86 × 104 5.00 × 104 0.254 6.08 × 104 6.00 × 104 0.304 7.30 × 104 6.26 × 104 0.318 7.61 × 104
 Aluminum I Beam: 10.00 × 8.646 (10.00 inch tall × 8.646 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 8.65 7.02 × 10-4 42.1 9.00 7.31 × 10-4 43.8 10.0 8.12 × 10-4 48.6 20.0 0.00162 97.3 30.0 0.00244 146 40.0 0.00325 195 50.0 0.00406 243 60.0 0.00487 292 70.0 0.00568 341 80.0 0.00649 389 90.0 0.00731 438 100 0.00812 486 200 0.0162 973 300 0.0244 1460 400 0.0325 1950 500 0.0406 2430 600 0.0487 2920 700 0.0568 3410 800 0.0649 3890 900 0.0731 4380 1000 0.0812 4860 2000 0.162 9730 3000 0.244 1.46 × 104 4000 0.325 1.95 × 104 5000 0.406 2.43 × 104 6000 0.487 2.92 × 104 7000 0.568 3.41 × 104 8000 0.649 3.89 × 104 9000 0.731 4.38 × 104 1.00 × 104 0.812 4.86 × 104 1.57 × 104 1.27 7.61 × 104
 Aluminum I Beam: 10.00 × 8.646 (10.00 inch tall × 8.646 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 8.65 0.00355 94.6 9.00 0.00370 98.5 10.0 0.00411 109 20.0 0.00822 219 30.0 0.0123 328 40.0 0.0164 438 50.0 0.0205 547 60.0 0.0247 657 70.0 0.0288 766 80.0 0.0329 876 90.0 0.0370 985 100 0.0411 1090 200 0.0822 2190 300 0.123 3280 400 0.164 4380 500 0.205 5470 600 0.247 6570 700 0.288 7660 800 0.329 8760 900 0.370 9850 1000 0.411 1.09 × 104 2000 0.822 2.19 × 104 3000 1.23 3.28 × 104 4000 1.64 4.38 × 104 5000 2.05 5.47 × 104 6000 2.47 6.57 × 104 6960 2.86 7.61 × 104
 Aluminum I Beam: 10.00 × 8.646 (10.00 inch tall × 8.646 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 8.65 0.0112 168 9.00 0.0117 175 10.0 0.0130 195 20.0 0.0260 389 30.0 0.0390 584 40.0 0.0520 778 50.0 0.0649 973 60.0 0.0779 1170 70.0 0.0909 1360 80.0 0.104 1560 90.0 0.117 1750 100 0.130 1950 200 0.260 3890 300 0.390 5840 400 0.520 7780 500 0.649 9730 600 0.779 1.17 × 104 700 0.909 1.36 × 104 800 1.04 1.56 × 104 900 1.17 1.75 × 104 1000 1.30 1.95 × 104 2000 2.60 3.89 × 104 3000 3.90 5.84 × 104 3910 5.08 7.61 × 104
 Aluminum I Beam: 10.00 × 8.646 (10.00 inch tall × 8.646 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 8.65 0.0274 263 9.00 0.0285 274 10.0 0.0317 304 20.0 0.0634 608 30.0 0.0951 912 40.0 0.127 1220 50.0 0.159 1520 60.0 0.190 1820 70.0 0.222 2130 80.0 0.254 2430 90.0 0.285 2740 100 0.317 3040 200 0.634 6080 300 0.951 9120 400 1.27 1.22 × 104 500 1.59 1.52 × 104 600 1.90 1.82 × 104 700 2.22 2.13 × 104 800 2.54 2.43 × 104 900 2.85 2.74 × 104 1000 3.17 3.04 × 104 2000 6.34 6.08 × 104 2500 7.94 7.61 × 104
 Aluminum I Beam: 10.00 × 8.646 (10.00 inch tall × 8.646 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 8.65 0.0569 379 9.00 0.0592 394 10.0 0.0658 438 20.0 0.132 876 30.0 0.197 1310 40.0 0.263 1750 50.0 0.329 2190 60.0 0.395 2630 70.0 0.460 3060 80.0 0.526 3500 90.0 0.592 3940 100 0.658 4380 200 1.32 8760 300 1.97 1.31 × 104 400 2.63 1.75 × 104 500 3.29 2.19 × 104 600 3.95 2.63 × 104 700 4.60 3.06 × 104 800 5.26 3.50 × 104 900 5.92 3.94 × 104 1000 6.58 4.38 × 104 1740 11.4 7.61 × 104
 Aluminum I Beam: 10.00 × 8.646 (10.00 inch tall × 8.646 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 8.65 0.180 673 9.00 0.187 701 10.0 0.208 778 20.0 0.416 1560 30.0 0.623 2340 40.0 0.831 3110 50.0 1.04 3890 60.0 1.25 4670 70.0 1.45 5450 80.0 1.66 6230 90.0 1.87 7010 100 2.08 7780 200 4.16 1.56 × 104 300 6.23 2.34 × 104 400 8.31 3.11 × 104 481 10.0 3.75 × 104
 Aluminum I Beam: 10.00 × 8.646 (10.00 inch tall × 8.646 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 8.65 0.439 1050 9.00 0.457 1090 10.0 0.507 1220 20.0 1.01 2430 30.0 1.52 3650 40.0 2.03 4860 50.0 2.54 6080 60.0 3.04 7300 70.0 3.55 8510 80.0 4.06 9730 90.0 4.57 1.09 × 104 100 5.07 1.22 × 104 197 10.0 2.40 × 104
 Aluminum I Beam: 10.00 × 8.646 (10.00 inch tall × 8.646 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 8.65 0.910 1510 9.00 0.947 1580 10.0 1.05 1750 20.0 2.10 3500 30.0 3.16 5250 40.0 4.21 7010 50.0 5.26 8760 60.0 6.31 1.05 × 104 70.0 7.36 1.23 × 104 80.0 8.42 1.40 × 104 90.0 9.47 1.58 × 104 95.1 10.0 1.66 × 104
 Aluminum I Beam: 10.00 × 8.646 (10.00 inch tall × 8.646 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 8.65 1.69 2060 9.00 1.75 2150 10.0 1.95 2380 20.0 3.90 4770 30.0 5.85 7150 40.0 7.80 9540 50.0 9.75 1.19 × 104 51.3 10.0 1.22 × 104
 Aluminum I Beam: 10.00 × 8.646 (10.00 inch tall × 8.646 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 8.65 2.87 2690 9.00 2.99 2800 10.0 3.33 3110 20.0 6.65 6230 30.0 9.98 9340 30.1 10.0 9360
 Aluminum I Beam: 10.00 × 8.646 (10.00 inch tall × 8.646 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 8.65 4.60 3410 9.00 4.79 3550 10.0 5.33 3940 18.8 10.0 7400
 Aluminum I Beam: 10.00 × 8.646 (10.00 inch tall × 8.646 lbf/ft) L = 100 ft (lbf/ft) (in) (psi) 8.65 7.02 4210 9.00 7.31 4380 10.0 8.12 4860 12.3 10.0 5990
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